Quick answers
- Does Navid M. Ziran accept Medicare assignment?
- Yes. Medicare's clinician data says Navid M. Ziran accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Navid M. Ziran's NPI number?
- 1891704284. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Navid M. Ziran works
Medicare's Facility Affiliation Data lists Navid M. Ziran at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- NorthBay Medical CenterFairfield, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050367
Practice locations
Addresses where Navid M. Ziran is enrolled with Medicare (CMS data updated October 2, 2026).
- 2500 Hilborn RdFairfield, CA 94534 (707) 646‑3445
Group practices
Medicare enrollment lists Navid M. Ziran as a member of this group (CMS data updated October 2, 2026).
- NorthBay Physicians Surgery Center, LLC324 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Fairfield
Clinicians with the same Medicare primary specialty in Fairfield, CA — not a recommendation.
Other clinicians in NorthBay Physicians Surgery Center, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University |
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891704284 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians